If it's high delta, it's a bit like holding a stock. Also, higher delta has a higher chance of expiring in the money.

If it's high gamma the price of the option will tend to whip around. Gamma is usually highest on the day of expiration.

Theta ramps up exponentially toward expiration, and eats away at the extrinsic value of your option day by day.

IV mainly reflects how risky people think the option is to hold, and Vega tells you how quickly that sentiment tends to change. If people are panicky and unsure, bullish one day bearish the next, both will be high, and the price of the option will be high to match.

There are many other greeks, both 2nd and 3rd order and combinations of these, but knowing them in detail is usually important for particular trading strategies. If you have an intuition for the four mentioned above, you'll do much better than people who wonder why the price moved in their direction, but they lost money anyway.